'Oppressions' in the Bible

By reason of the multitude of oppressions they cry out; They cry for help by reason of the arm of the mighty.

Then I returned and saw all the oppressions that are done under the sun: and, behold, the tears of such as were oppressed, and they had no comforter; and on the side of their oppressors there was power; but they had no comforter.

He that walketh righteously, and speaketh uprightly; he that despiseth the gain of oppressions, that shaketh his hands from taking a bribe, that stoppeth his ears from hearing of blood, and shutteth his eyes from looking upon evil:

Publish ye in the palaces at Ashdod, and in the palaces in the land of Egypt, and say, Assemble yourselves upon the mountains of Samaria, and behold what great tumults are therein, and what oppressions in the midst thereof.